If
the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates: Not
applicable

PART
I - REGISTRANT INFORMATION

Full
Name of Registrant:

SINTX
Technologies, Inc.

Former
Name if applicable:

Amedica
Corporation

Address
of Principal Executive Office:

1885
W 2100 S

Salt
Lake City, UT 84119

PART
II - RULE 12B-25(b) AND (c)

If
the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule
12b-25(b), the following should be completed: (Check box if appropriate)

[X]

(a)

The
reasons described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense;

[ ]

(b)

The
subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, Form 11-K, Form N-SAR or Form N-CSR,
or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject
quarterly report or transition report on Form 10-Q or subject distribution report on Form 10-D, or portion thereof, will be
filed on or before the fifth calendar day following the prescribed due date; and

[ ]

(c)

The
accountant’s statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.

PART
III - NARRATIVE

State
below in reasonable detail the reasons why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-SAR, NCSR, or the transition report or portion
thereof, could not be filed within the prescribed period.

The
Registrant’s Quarterly Report on Form 10-Q for the period ending March 31, 2019, could not be filed without unreasonable
effort or expense within the prescribed time period because we require additional time to compile and verify the data required
to be included in the report. The Company expects to file the Form 10-Q on or before Monday, May 20, 2019, in full compliance
with the rules of the Commission.

PART
IV - OTHER INFORMATION

(1)

Name
and telephone number of person to contact in regard to this notification:

B.
Sonny Bal, CEO (801) 839-3500

(2)

Have
all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of
the Investment Company Act of 1940 during the preceding twelve months or for such shorter period that the registrant was
required to file such report(s) been filed? If the answer is no, identify report(s) [X] Yes [ ] No

(3)

Is
it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year
will be reflected by the earnings statements to be included in the subject report or portion thereof? [ ] Yes [X]
No

If
so, attach an explanation of the anticipated change, both narratively and quantitatively, and if appropriate, state the reasons
why a reasonable estimate of the results cannot be made.

SINTX
Technologies, Inc. has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.